<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body{
				/*
				写太多麻烦
				*/
				/* background-color: #9ACD32;
				background-image: url(img/2.jpg);
				background-repeat: no-repeat;
				background-position: center;
				background-attachment: fixed; */
				
				/*
				可以这样简写
				没有顺序和数量的要求
				*/
				background: #bfa url(img/2.jpg) center no-repeat fixed;
			}
		</style>
	</head>
	<body>
		
	</body>
</html>
